A strong GREAT application connects three things: the applicant's academic background, the Sussex course, and the future impact of the degree. Instead of writing broadly about the United Kingdom, explain why the specific programme matters for your subject, career path, community, industry, or research direction.
Use evidence. Mention relevant coursework, projects, work experience, volunteering, publications, competitions, leadership, or real problems you have worked on. The goal is not to sound dramatic; the goal is to show that your interest is already active and that a Sussex master's would build on something real.
The future-impact part should be credible. Avoid promising to transform an entire country in one sentence. It is better to explain a focused next step: a policy area you want to work in, a sector you want to enter, a research gap you want to address, a business or public-service problem you understand, or a professional role where the Sussex course gives relevant skills.
If the form asks about being a GREAT scholar or ambassador, take that seriously. The wider programme values engagement, networking, and representing the scholarship community. Show that you understand the responsibility without turning the answer into slogans.